Private Sub ChangeBackcolorRed(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.MouseEnter, TextBox2.MouseEnter, TextBox3.MouseEnter
sender.backcolor = Color.Blue
End Sub
Private Sub ChangeBackcolorWhite(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.MouseLeave, TextBox2.MouseLeave, TextBox3.MouseLeave
sender.backcolor = Color.White
End Sub
VB.NET Syntax (Toggle Plain Text)
Private Sub ChangeBackcolorRed(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.Enter, TextBox2.Enter, TextBox3.Enter
sender.backcolor = Color.Blue
End Sub
Private Sub ChangeBackcolorWhite(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.Leave, TextBox2.Leave, TextBox3.Leave
sender.backcolor = Color.White
End Sub
@waynespangler, your code is working with mouseEnter and MouseLeave, but the OP wants to change the backcolor when Tabstop set the focus on the textbox.